/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataRequestOwner.h
Begins a barrier, ends the request, invokes the callback, then ends the barrier. Keeps its reference to the request until the callback has returned.
The reference to the request that was held by the owner.
template<typename CallbackType, typename... CallbackArgTypes> [TRefCountPtr](API\Runtime\Core\Templates\TRefCountPtr)< [IRequest](API\Developer\DerivedDataCache\IRequest) > End ( [IRequest](API\Developer\DerivedDataCache\IRequest) * Request, CallbackType && Callback, CallbackArgTypes &&... CallbackArgs )